Which of the following best describes the behavior of euglenoids in the absence of sunlight?
Which of the following best describes the behavior of euglenoids in the absence of sunlight?
They continue to photosynthesize
They behave like heterotrophs and predate on other organisms
They die
They become dormant
Solution
Euglenoids are photosynthetic in the presence of sunlight, but when deprived of it, they switch to a heterotrophic mode of survival and predate on other smaller organisms. This adaptation allows them to survive in environments where sunlight is scarce.